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A Study on the Comparison Between Full-3D and Quasi-1D Supercompact Multiwavelets (Full-3D와 Quasi-1D Supercompact Multiwavelets의 비교 연구)

  • Park, June-Pyo;Lee, Do-Hyung;Kwon, Do-Hoon
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.28 no.12
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    • pp.1608-1615
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    • 2004

  • CFD data compression methods based on Full-3D and Quasi-1D supercompact multiwavelets are presented. Supercompact wavelets method provide advantageous benefit that it allows higher order accurate representation with compact support. Therefore it avoids unnecessary interaction with remotely located data across singularities such as shock. Full-3D wavelets entails appropriate cross-derivative scaling function & wavelets, hence it can allow highly accurate multi-spatial data representation. Quasi-1D method adopt 1D multiresolution by alternating the directions rather than solving huge transformation matrix in Full-3D method. Hence efficient and relatively handy data processing can be conducted. Several numerical tests show swift data processing as well as high data compression ratio for CFD simulation data.

  • https://doi.org/10.3795/KSME-B.2004.28.12.1608 인용 PDF KSCI

High Optical Performance of 7" Mini-monitor Based on 2D-3D Convertible Autostereoscopic Display

  • Kim, Sun-Kyung;Park, Sang-Hyun;Kim, You-Jin;Min, Kwan-Sik;Park, Seo-Kyu;Jhun, Chul-Gyu;Kwon, Soon-Bum
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1367-1370
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    • 2009

  • We have developed a 2D-3D convertible 7" autostereoscopic mini-monitor with high 3D quality, in which the parallax barrier LCD is attached on the TFTLCD. The excellent optical performance was achieved by design of the ghost free barrier and precise assembly between the barrier layer and the TFT-LCD panel. Our design principle and fabrication technology suppressed 3D cross-talk and improved viewing angle. In this paper, the design and fabrication process of the 3D mini-monitor are described. The evaluation for the 3D performance is also discussed.

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Do-It-Yourself (DIY) manufacture of a Nano-LC MALDI spotter robot using 3D printing technology

  • Lee, Jae-ung;Oh, Han Bin
    • Analytical Science and Technology
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    • v.30 no.4
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    • pp.167-173
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    • 2017

  • In the era of the forth Industrial Revolution, open source code and open source hardware have gained much attention. In particular, 3D printing technology is expanding into the realms of classical science, technology and our daily lives. Relatedly, in the present study, we demonstrate the manufacture of a nano-LC MALDI spotter robot using 3D printing technology. The parts of the spotter robot were either made using a 3D printer or purchased as 3D printer parts from the 3D printer online market, so that anyone can make the robot without a deep knowledge of engineering or electronics, i.e., DIY (do-it-yourself) product. In the nano-LC MALDI spotter, the nano-LC eluent and MALDI matrix were mixed in a T-union and discharged from the capillary outlet. The eluent and matrix mixture could be spotted onto the movable MALDI plate. The MALDI plate was designed to translate in a two-dimensional space (xy plane), which was enabled by the movements of two stepper motors. In the paper, all computer-aided design (CAD) files for the parts and operation software are provided to help the reader manufacture their own spotter robot.

  • https://doi.org/10.5806/AST.2017.30.4.167 인용 PDF KSCI